Model Name: Friction FolderModel Reference: C167Designer: Filip De LeeuwMSRP: $314.95Description: Friction folders were the first type of folding knife created, and Spyderco has collaborated with Belgian knifemaker Filip De Leeuw to bring one of his most famous designs to the masses. Friction folders do not lock, so they are not recommended to be carried in the pocket without a pouch, so the knife includes a leather pouch with a pocket clip on it.